WO2002034631A2 - Palette en matiere plastique et son procede de fabrication - Google Patents
Palette en matiere plastique et son procede de fabrication Download PDFInfo
- Publication number
- WO2002034631A2 WO2002034631A2 PCT/FR2001/003082 FR0103082W WO0234631A2 WO 2002034631 A2 WO2002034631 A2 WO 2002034631A2 FR 0103082 W FR0103082 W FR 0103082W WO 0234631 A2 WO0234631 A2 WO 0234631A2
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- WO
- WIPO (PCT)
- Prior art keywords
- openings
- pallet
- plate
- section
- opening
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/0004—Rigid pallets without side walls
- B65D19/0006—Rigid pallets without side walls the load supporting surface being made of a single element
- B65D19/0008—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface
- B65D19/001—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element
- B65D19/0014—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces
- B65D19/0016—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces and each contact surface having a stringer-like shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/0004—Rigid pallets without side walls
- B65D19/0006—Rigid pallets without side walls the load supporting surface being made of a single element
- B65D19/0008—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface
- B65D19/001—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element
- B65D19/0014—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces
- B65D19/0018—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces and each contact surface having a discrete foot-like shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/26—Scrap or recycled material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7178—Pallets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00014—Materials for the load supporting surface
- B65D2519/00034—Plastic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00049—Materials for the base surface
- B65D2519/00069—Plastic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00263—Overall construction of the pallet
- B65D2519/00268—Overall construction of the pallet made of one piece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00283—Overall construction of the load supporting surface
- B65D2519/00288—Overall construction of the load supporting surface made of one piece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00283—Overall construction of the load supporting surface
- B65D2519/00308—Overall construction of the load supporting surface grid type, e.g. perforated plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00313—Overall construction of the base surface
- B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
- B65D2519/00333—Overall construction of the base surface shape of the contact surface of the base contact surface having a stringer-like shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00313—Overall construction of the base surface
- B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
- B65D2519/00338—Overall construction of the base surface shape of the contact surface of the base contact surface having a discrete foot-like shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00313—Overall construction of the base surface
- B65D2519/00363—Overall construction of the base surface grid type, e.g. perforated plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00398—Overall construction reinforcements
- B65D2519/00402—Integral, e.g. ribs
- B65D2519/00407—Integral, e.g. ribs on the load supporting surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00398—Overall construction reinforcements
- B65D2519/00402—Integral, e.g. ribs
- B65D2519/00412—Integral, e.g. ribs on the base surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00547—Connections
- B65D2519/00552—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer
- B65D2519/00557—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D2565/38—Packaging materials of special type or form
- B65D2565/381—Details of packaging materials of special type or form
- B65D2565/384—Details of packaging materials of special type or form made of recycled material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
Definitions
- the invention relates to a plastic handling pallet and a method of manufacturing a plastic handling pallet.
- a handling pallet generally comprises an upper plate of substantially rectangular shape and projecting feet or studs projecting below the plate. Handling pallets are traditionally made of wood, but plastic handling pallets are also known, generally obtained by injection molding. Examples of plastic handling pallets that may be cited are the embodiments known from French patent documents FR-2070367, FR-2172412, FR-2259023 and also from documents WO-96/24529, US-5341748, DE-2306869, DE-2720364, EP-231792, EP452726 and finally AT-307980.
- the plastic handling pallets have, most often, a tray having an openwork structure.
- the openings in the tray may have the form of elongated slots as shown in certain aforementioned documents (FR-2,070,367, US-5,341,748). These slots can be oriented either all in one direction, therefore parallel to each other, or in two perpendicular directions.
- the plastic pallet trays have openings of square or rectangular shape, forming a grid or a grid (see in particular FR-2.259.023 and WO-96/24529 above).
- any pallet of handling must resist not only the weight of the load posed on its plate but also with the side shocks and the stresses of the forks of the lifting devices used for their handling.
- the present invention aims to remedy the drawbacks of current plastic handling pallets, by providing a pallet optimized with a particularly resistant perforated plate, and a lighter weight than those currently known.
- the present invention also relates to a process for manufacturing a plastic pallet from recycled or recyclable plastics.
- the subject of the invention is a plastic handling pallet comprising a tray having an openwork structure and feet projecting under the tray, characterized in that the openwork structure of the tray is formed by partitions arranged regularly in rows and columns to form a grid defining first openings which extend completely across the plateau, and by annular nodes arranged respectively at the intersections of the grid, these nodes forming second openings which extend completely across the plateau .
- each second opening has a rectangular section and each first opening has an octagonal section.
- each second opening may have a circular or substantially circular section and each first opening has a substantially octagonal section.
- the first openings have a larger section than that of the second openings, about four times larger.
- the mesh, produced by this openwork “honeycomb” structure, is strong enough to allow the pallet to be held, in compliance with European standards, and it also provides maximum lightening of the pallet, allowing it to be lifted and handled. by one person.
- this mesh can be fine enough to allow the storage of small objects and small parts on the pallet, ensuring their support and avoiding their sliding.
- the fact that the openings of the perforated structure extend completely through the tray allows a flow of fluids and good preservation of the load on the pallet.
- the invention is applicable to different types of plastic handling pallets: disposable pallets or pallets reusable, pallets stackable or not, pallets with simple feet or studs, or pallets with soles, etc. , these pallets being able to be naturally of any format, in particular of standardized dimensions.
- the soles also have an openwork “honeycomb” structure identical to that of the plate, in particular in the intermediate parts of these soles, that is to say their parts located between the feet, the openings in the openwork structure of the soles being oriented in the plane defined by the pallet tray to avoid retention of water or various liquids.
- This openwork construction of the plate and the soles guarantees that mechanical resistance and homogeneous reactions in torsion and flexion are obtained, both at the level of the plate and at the level of the soles.
- the invention extends to a method of manufacturing a plastic handling pallet, and in particular a pallet with a tray having an openwork structure as indicated above, method according to which the pallet is produced by injection into a mold.
- a thermoplastic material mixed with a thermoplastic elastomer.
- This plastic material can be a mixture of polyolefins and or polyolefins and PET from recycled or recyclable waste (bottles, bags, diapers, etc.). It has been found, surprisingly, that by adding to the thermoplastic material constituted by this waste, an additive constituted by a thermoplastic elastomer, a thermoplastic mixture is obtained which has very good mechanical properties in torsion, in bending, and a good impact resistance.
- This additive plays the role of a binder which strengthens the bond and cohesion of heterogeneous plastics. In addition, this additive does not require any treatment prior to injection to be mixed with the raw material.
- Figure 1 is an overall top view, in perspective, of a first embodiment of a pallet according to the present invention.
- Figure 2 is an overall view from below, in perspective, of a second embodiment of a pallet according to the present invention.
- FIG. 3 is a schematic plan view over the perforated structure of the plate of the pallets shown in FIGS. 1 and 2.
- FIG. 4 is a view in horizontal section of this pallet, made at the level of the soles of the pallet shown in FIG. 1.
- the plastic handling pallet generally designated by the reference numeral 1
- the plastic handling pallet comprises a perforated upper plate 2 of rectangular shape for example, under which project nine feet or studs 3, of hollow configuration, distributed in three parallel rows of three feet 3.
- the three feet 3 of each row are connected together, at their base, by an elongated sole 4.
- the plate 2 has an openwork "honeycomb” structure, clearly visible in FIG. 3.
- each sole 4 also has an openwork structure in "honeycomb” bees ”as shown in Figure 1.
- the pallet is obtained by injection molding and is made in one piece.
- the openwork “honeycomb” structure of the tray 1 is formed by vertical partitions 6 regularly arranged in rows and columns to form a grid defining first openings 9 which extend completely through the tray 2 and by nodes 10 of annular shape disposed respectively at the intersections of the grid and forming second openings 8 which extend completely through the plate 2.
- the vertical partition forming the nodes is designated by 5.
- the vertical partitions 5, 6 meet at points of convergence 7 and delimit the openings 8 and 9 repeating, in a regular geometric pattern, in the longitudinal and transverse directions of the pallet 1.
- the partitions 5 extend in the longitudinal and transverse directions of the pallet 1, being arranged in squares, so as to delimit the openings 8 themselves of generally square shape, and of relatively small dimension, the side of these square openings being designated by A on FIG. 3.
- Each node 10 is thus constituted by four contiguous partitions 5 delimiting a square opening 8.
- the multiple nodes 10, thus formed, are distributed in staggered rows, in particular over the extent of the plate 2, and they are interconnected by the other partitions 6.
- These partitions 6 are oriented in oblique directions, at 45 ° to the longitudinal and transverse directions of the pallet 1.
- Each oblique partition 6 connects an angle of a node 10, that is to say the point of convergence 7 of two partitions 5, at an angle of a neighboring node 10.
- the combination of partitions 5 and 6 delimits the other openings 9, of octagonal shape, each opening 9 having four sides formed by the partitions 5, and four other sides formed by the four oblique partitions 6, which are inserted between the first partitions 5.
- the openings 9 have the shape of regular or non-regular octagons.
- the openwork “honeycomb” structure of the soles 4 is identical to that of the plate 2, however more limited in its extent, since it only exists on the intermediate parts of the soles 4, located between the feet 3 as visible on the Figure 4.
- the openings 8 and 9 in the soles 4 are oriented in the plane defined by the plate 2.
- the oblique partitions 6 in the plate 2 or in the flanges 4 form arms which converge towards the nodes 10 of the perforated "honeycomb" structure so that the pallet 1 is particularly resistant to traction and bending forces, as well as crushing and impact.
- This pallet 1 can be produced by injection molding from an appropriate mixture of polyolefins, for example a mixture of polypropylene and polyethylene from recycled or recyclable waste.
- Such a pallet 1 is particularly light.
- the weight can be reduced to ten kilograms, or even less, while the usual weight of a plastic pallet, of the same dimensions, is order of 25 kg.
- the dimensions A and B have been chosen equal to approximately 28 mm.
- the thickness and height of the walls 6 and 7 have been chosen to be approximately 3.5 mm and 30 mm respectively.
- the height of the soles 4 was chosen to be approximately 20 mm.
- the section of the openings 8 must be sufficient so that the openings 8 do not constitute points of concentration of forces and the section of the openings 8 should not be less than 15% of the section of the openings 9.
- the section of each opening 9 (diameter of approximately 60 mm) is approximately four times larger than that of each opening 8.
- a suitable ratio between the section of an opening 9 and the section of an opening 8 is between 3 and 5.
- This invention is also linked to the use of a product serving as an additive, a binder and a compatibilizer, the role of which is to allow the use of different thermoplastics at the level of the pallet which do not a priori have any possibility of bonding. molecular.
- This product is a thermoplastic elastomer (for example: the product sold under the brand name "Santoprene”) which makes it possible to provide the palette with better mechanical characteristics, in particular impact resistance and mechanical resistance to cold.
- non-compatible products such as: polyolefin or polyolefin and PET mixtures can be used for the production of the pallet.
- PET playing the role of filler up to 30% by weight.
- thermoplastic a low PET filler can be used to make the thermoplastic.
- balls of used PET bottles possibly containing the caps of another thermoplastic material, for example polypropylene, as well as the labels and the glue, are put in a shredder making it possible to grind the whole to obtain glitter of one dimension. homogeneous of the order of 8 mm in length. PET bottles can be compacted or not, and there is no need to wash or dry them.
- the flakes are then placed in a micronizer, for example a vertical micronizer of the rotating plate type, to be transformed into fine fibers with a length of up to 3 mm and a diameter of the order of 50 microns.
- a micronizer for example a vertical micronizer of the rotating plate type
- These fine fibers have the property of being able to intermingle naturally.
- Mixtures using PET in the form of fibers up to 30% will preferably be produced by an agglomeration or compacting process at low temperature and around 120 ° C.
- thermoplastic elastomer So that the mixture is not too rigid and brittle and to give good impact resistance as indicated above, a small amount of thermoplastic elastomer will be added to these mixtures.
- thermoplastic elastomer During the injection and in order not to destroy the fibrous structure of the PET, one will work at temperatures below 180 ° C., that is to say at temperatures below the softening temperatures of the PET. If the mixture was not sufficiently fluid or transformable, it is possible to use fluidizing agents such as peroxides.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Pallets (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001295663A AU2001295663A1 (en) | 2000-10-24 | 2001-10-05 | Plastic pallet and method for making same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0013599A FR2815605B1 (fr) | 2000-10-24 | 2000-10-24 | Palette en matiere plastique et procede de fabrication d'une palette en matiere plastique |
FR00/13599 | 2000-10-24 | ||
FR00/16852 | 2000-12-22 | ||
FR0016852A FR2815606B1 (fr) | 2000-10-24 | 2000-12-22 | Palette en matiere plastique et procede de fabricati0n d'une telle palette |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002034631A2 true WO2002034631A2 (fr) | 2002-05-02 |
WO2002034631A3 WO2002034631A3 (fr) | 2002-10-31 |
Family
ID=26212694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2001/003082 WO2002034631A2 (fr) | 2000-10-24 | 2001-10-05 | Palette en matiere plastique et son procede de fabrication |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2001295663A1 (fr) |
FR (1) | FR2815606B1 (fr) |
WO (1) | WO2002034631A2 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1544117A1 (fr) * | 2003-12-18 | 2005-06-22 | Patentwerke A.G. | Palette renforcée gerbable |
WO2006074691A1 (fr) * | 2005-01-12 | 2006-07-20 | Yellowstone International Limited | Palettes, et parties de ces palettes |
ITRN20080059A1 (it) * | 2008-12-15 | 2010-06-16 | Giovanni Costarelli | Sistema strutturale reticolato integrale, atto a sopportare carichi elevati, e ricavato tramite la tecnologia dello stampaggio ad iniezione con stampo concepito in semplice sistema apri e chiudi senza parti da realizzare in sottosquadro. |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2908742B1 (fr) * | 2006-11-20 | 2009-02-13 | Plastic Omnium Cie | Palette de transport et de stockage munie d'une etiquette |
DE102014217575B4 (de) * | 2014-09-03 | 2016-04-21 | Walther Faltsysteme Gmbh | Anordnung zweier Ladegutträger aufeinander |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2070367A5 (en) | 1969-12-02 | 1971-09-10 | Liurette Claude | Plastic transport palette with several - unloading cavities |
AT307980B (de) | 1970-09-23 | 1973-06-12 | Spumalit Anstalt | Transport- und Lagerplatte aus Kunststoff |
DE2306869A1 (de) | 1972-02-16 | 1973-08-23 | Utz Ag Georg | Palette aus kunststoff |
FR2259023A1 (fr) | 1974-01-24 | 1975-08-22 | Schoeller & Co Ag A | |
DE2720364A1 (de) | 1977-05-06 | 1978-12-21 | Reinders Jun Henk | Stapelpalette zum transport schmutzgebender gueter |
EP0452726A1 (fr) | 1990-04-02 | 1991-10-23 | Project Development Ltd. Z.A.G. | Structure de panneau obtenue par extrusion |
US5341748A (en) | 1993-07-19 | 1994-08-30 | Liu Cheng Chia | Stackable pallet |
WO1996024529A2 (fr) | 1995-02-10 | 1996-08-15 | David S. Smith Packaging Limited | Palette |
EP2306869A1 (fr) | 2008-04-02 | 2011-04-13 | Sapdesign AS | Dispositif de siège |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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NL7905700A (nl) * | 1979-07-24 | 1981-01-27 | Stamicarbon | Thermoplastische elastomere compositie en werkwijze ter bereiding daarvan. |
DE8532367U1 (de) * | 1984-12-31 | 1986-02-06 | Klowski, Reinhold, Dipl.-Ing., 2000 Wedel | Flachpalette |
DE3602624A1 (de) | 1986-01-29 | 1987-07-30 | Klowski Reinhold | Flachpalette |
DE8703613U1 (fr) * | 1987-03-11 | 1987-06-25 | Hoechst Ag, 6230 Frankfurt, De | |
US4838176A (en) * | 1988-08-24 | 1989-06-13 | Bowser Pallet Co. | Nesting and stacking pallet |
FR2662389B1 (fr) * | 1990-05-22 | 1993-09-03 | Silim Environnement | Ensemble compact de broyage transporte pour bouteilles plastiques. |
US5436296A (en) * | 1991-09-12 | 1995-07-25 | Alliedsignal Inc. | Compositions of polymeric materials including polyalkylene terephthalates and polyethylene |
DE9207382U1 (fr) * | 1992-06-01 | 1992-09-10 | Remaplan Anlagenbau Gmbh, 8000 Muenchen, De | |
DE69424521T2 (de) * | 1994-02-02 | 2000-09-14 | Europ Economic Community | PET Verpackungsmaterial |
DE19643603A1 (de) * | 1996-10-22 | 1998-04-23 | Kuno Kunststofftechnik Nord Gm | Verfahren zur Herstellung gereinigter Kunststoffteilchen aus Kunststoffabfällen sowie deren Verwendung in einer Mischung für die Herstellung von Formteilen, insbesondere von Paletten sowie Vorrichtung zur Durchführung des Verfahrens |
DE19830913A1 (de) * | 1998-07-10 | 2000-01-13 | Finacor Anstalt Vaduz | Kunststoffverarbeitungs- und -recyclingverfahren und Verfahren zur Herstellung von Kunststoffwerkstoffen |
-
2000
- 2000-12-22 FR FR0016852A patent/FR2815606B1/fr not_active Expired - Fee Related
-
2001
- 2001-10-05 WO PCT/FR2001/003082 patent/WO2002034631A2/fr active Application Filing
- 2001-10-05 AU AU2001295663A patent/AU2001295663A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2070367A5 (en) | 1969-12-02 | 1971-09-10 | Liurette Claude | Plastic transport palette with several - unloading cavities |
AT307980B (de) | 1970-09-23 | 1973-06-12 | Spumalit Anstalt | Transport- und Lagerplatte aus Kunststoff |
DE2306869A1 (de) | 1972-02-16 | 1973-08-23 | Utz Ag Georg | Palette aus kunststoff |
FR2172412A1 (fr) | 1972-02-16 | 1973-09-28 | Utz Ag Georg | |
FR2259023A1 (fr) | 1974-01-24 | 1975-08-22 | Schoeller & Co Ag A | |
DE2720364A1 (de) | 1977-05-06 | 1978-12-21 | Reinders Jun Henk | Stapelpalette zum transport schmutzgebender gueter |
EP0452726A1 (fr) | 1990-04-02 | 1991-10-23 | Project Development Ltd. Z.A.G. | Structure de panneau obtenue par extrusion |
US5341748A (en) | 1993-07-19 | 1994-08-30 | Liu Cheng Chia | Stackable pallet |
WO1996024529A2 (fr) | 1995-02-10 | 1996-08-15 | David S. Smith Packaging Limited | Palette |
EP2306869A1 (fr) | 2008-04-02 | 2011-04-13 | Sapdesign AS | Dispositif de siège |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1544117A1 (fr) * | 2003-12-18 | 2005-06-22 | Patentwerke A.G. | Palette renforcée gerbable |
WO2006074691A1 (fr) * | 2005-01-12 | 2006-07-20 | Yellowstone International Limited | Palettes, et parties de ces palettes |
ITRN20080059A1 (it) * | 2008-12-15 | 2010-06-16 | Giovanni Costarelli | Sistema strutturale reticolato integrale, atto a sopportare carichi elevati, e ricavato tramite la tecnologia dello stampaggio ad iniezione con stampo concepito in semplice sistema apri e chiudi senza parti da realizzare in sottosquadro. |
Also Published As
Publication number | Publication date |
---|---|
WO2002034631A3 (fr) | 2002-10-31 |
FR2815606A1 (fr) | 2002-04-26 |
FR2815606B1 (fr) | 2002-12-06 |
AU2001295663A1 (en) | 2002-05-06 |
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